disable gc: llgo -tags nogc

internal/runtime/z_rt.go

@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package runtime
+
+import (
+	"unsafe"
+
+	"github.com/goplus/llgo/internal/abi"
+	"github.com/goplus/llgo/internal/runtime/c"
+)
+
+// -----------------------------------------------------------------------------
+
+// Defer presents defer statements in a function.
+type Defer struct {
+	Bits uintptr
+	Link *Defer
+	Rund int // index of RunDefers
+}
+
+// -----------------------------------------------------------------------------
+
+// Zeroinit initializes memory to zero.
+func Zeroinit(p unsafe.Pointer, size uintptr) unsafe.Pointer {
+	return c.Memset(p, 0, size)
+}
+
+// TracePanic prints panic message.
+func TracePanic(v Eface) {
+	kind := v._type.Kind()
+	switch {
+	case kind == abi.String:
+		stringTracef(c.Stderr, c.Str("panic: %s\n"), *(*String)(v.data))
+	}
+	// TODO(xsw): other message type
+}
+
+func stringTracef(fp c.FilePtr, format *c.Char, s String) {
+	cs := c.Alloca(uintptr(s.len) + 1)
+	c.Fprintf(fp, format, CStrCopy(cs, s))
+}
+
+// -----------------------------------------------------------------------------